Home / 87,588.70-120,872.54-49,862.95

Finding the Fourth Proportional to 87,588.70, 120,872.54 and 49,862.95

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Solution

The fourth proportional to 87,588.70, 120,872.54 and 49,862.95 is: 68,810.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,588.70 : 120,872.54 = 49,862.95 : x
  2. Step 2: Convert to fraction form
    87,588.70/120,872.54 = 49,862.95/x
  3. Step 3: Cross multiply
    87,588.70x = 120,872.54 × 49,862.95
  4. Step 4: Simplify right side
    87,588.70x = 6,027,060,564.72
  5. Step 5: Solve for x
    x = 6,027,060,564.72/87,588.70
  6. Step 6: Final answer
    x = 68,810.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.